Waterfall

Waterfalls form where the river flows over a steep precipice in its course.

Related extras

Types of lakes

Still waters take various forms on the planet. Let’s take a look at how we can group them.

Fjord

A fjord is a long, narrow inlet with steep sides, created in a valley carved by...

Monsoon wind system

In summer, monsoon winds bring heavy rainfall from the sea to the mainland.

The Gregorian calendar

Developed nearly 500 years ago, it is a variant of the Julian calendar. Today it is...

El Niño

A periodic climate pattern that occurs across the tropical Pacific Ocean every five years.

Faulting (intermediate)

Vertical forces can break up layers of rock into fault blocks, which then move...

Solar eclipse and lunar eclipse

We can observe quite interesting astronomical phenomena when the Earth, the Sun and...

Tsunami

Tsunami waves are very high waves of immense destructive power.

Added to your cart.